Lava flows, near mile-thick glaciers and ice age floods layered and carved up this landscape.

A group of Mississippi River shipping industry figures were treated to a tour of the Columbia-Snake river grain export system ...

A geologist's vibrant maps reveal how the Mississippi River has wandered across its valley, making it look like a colorful, ...

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An environmental justice nonprofit and the University of Richmond have partnered to fix flooding across the city. Go With the Flow, a community flood mapping project that began March 20 and concludes ...